chore:update test workflow to redis 8rc1

Author: cunla

.github/workflows/test.yml

@@ -52,7 +52,7 @@ jobs:
       max-parallel: 8
       fail-fast: false
       matrix:
-        redis-image: [ "redis:6.2.17", "redis:7.4.2", "redis:8.0-M04", "valkey/valkey:8.1" ]
+        redis-image: [ "redis:6.2.17", "redis:7.4.2", "redis:8.0-rc1", "valkey/valkey:8.1" ]
         python-version: [ "3.9", "3.12", "3.13" ]
         redis-py: [ "4.6.0", "5.0.8", "5.2.1", "5.3.0b5", "6.0.0b2" ]
         extra: [ "lua" ]